/* =========================================================
   Isfahan Healthcare City — stylesheet
   Design tokens derived from the project's own materials:
   turquoise referencing Isfahan's tilework domes, warm sand
   referencing the desert plateau, and a signature sine-wave
   motif traced directly from the building's undulating roof.
   ========================================================= */

:root{
  --ink:        #0F2A36;
  --ink-70:     rgba(15,42,54,.72);
  --ink-40:     rgba(15,42,54,.4);
  --teal-deep:  #0B5C68;
  --teal:       #147F8C;
  --teal-light: #5FB8C4;
  --teal-pale:  #E4F1F1;
  --gold:       #C8974E;
  --gold-light: #E4C185;
  --sand:       #F5F0E4;
  --paper:      #FBF8F1;
  --white:      #FFFFFF;

  --font-display: 'Vazirmatn', 'Manrope', sans-serif;
  --font-body:    'Vazirmatn', 'Manrope', sans-serif;
  --font-mono:    'IBM Plex Mono', 'Vazirmatn', monospace;

  --wave-path: path('M0,40 C 90,0 180,80 270,40 C 360,0 450,80 540,40 C 630,0 720,80 810,40 C 900,0 990,80 1080,40 C 1170,0 1260,80 1350,40 L1440,40 L1440,120 L0,120 Z');

  --container: 1180px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

html[dir="rtl"] body{ font-feature-settings:"ss01"; }

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-family:var(--font-display); font-weight:800; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:24px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--teal-deep);
  font-weight:600;
}
html[dir="rtl"] .eyebrow{ letter-spacing:0; }
.eyebrow::before{
  content:"";
  width:22px; height:2px;
  background:var(--gold);
  display:inline-block;
}

.section-head{
  max-width:640px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(1.7rem,3vw,2.5rem);
  margin-top:10px;
  color:var(--ink);
}
.section-head p{
  margin-top:14px;
  color:var(--ink-70);
  font-size:1.02rem;
}
.section-head.center{ margin-inline:auto; text-align:center; }

/* ---------- Reveal-on-scroll ---------- */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:transparent;
  transition:background .35s ease, box-shadow .35s ease, padding .35s ease;
  padding-block:20px;
}
.site-header.scrolled{
  background:rgba(251,248,241,.92);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(15,42,54,.08);
  padding-block:12px;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:1.05rem;
  color:var(--white);
  transition:color .35s ease;
}
.site-header.scrolled .brand{ color:var(--ink); }
.brand-mark{
  width:36px; height:36px;
  border-radius:50%;
  background:conic-gradient(from 210deg, var(--teal), var(--teal-light), var(--gold), var(--teal));
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.brand-mark svg{ width:19px; height:19px; }

.nav-links{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-links a{
  color:var(--white);
  font-size:.92rem;
  font-weight:600;
  position:relative;
  padding-block:4px;
  transition:color .35s ease;
}
.site-header.scrolled .nav-links a{ color:var(--ink-70); }
.nav-links a::after{
  content:"";
  position:absolute; inset-inline-start:0; bottom:0;
  width:0; height:2px; background:var(--gold);
  transition:width .25s ease;
}
.nav-links a:hover::after{ width:100%; }
.nav-links a:hover{ color:var(--gold); }
.site-header.scrolled .nav-links a:hover{ color:var(--teal-deep); }

.header-actions{ display:flex; align-items:center; gap:14px; }

.lang-switch{
  display:flex;
  border:1px solid rgba(255,255,255,.4);
  border-radius:999px;
  padding:3px;
  gap:2px;
  transition:border-color .35s ease;
}
.site-header.scrolled .lang-switch{ border-color:rgba(15,42,54,.18); }
.lang-switch button{
  padding:5px 12px;
  font-size:.76rem;
  font-weight:700;
  border-radius:999px;
  color:var(--white);
  transition:background .25s ease, color .25s ease;
}
.site-header.scrolled .lang-switch button{ color:var(--ink-70); }
.lang-switch button.active{
  background:var(--gold);
  color:var(--ink);
}
.site-header.scrolled .lang-switch button.active{ background:var(--teal); color:var(--white); }

.nav-toggle{
  display:none;
  width:38px; height:38px;
  align-items:center; justify-content:center;
  color:var(--white);
}
.site-header.scrolled .nav-toggle{ color:var(--ink); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  background:var(--ink);
}
.hero-media{
  position:absolute; inset:0;
}
.hero-media img{
  width:100%; height:100%; object-fit:cover;
  transform:scale(1.06);
  animation:hero-zoom 16s ease-out forwards;
}
@keyframes hero-zoom{ to{ transform:scale(1); } }
.hero-media::after{
  content:"";
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(11,26,34,.55) 0%, rgba(11,26,34,.35) 38%, rgba(11,26,34,.88) 100%),
    linear-gradient(90deg, rgba(11,26,34,.55), rgba(11,26,34,.1) 55%);
}
.hero-content{
  position:relative;
  z-index:2;
  padding-block:160px 120px;
  width:100%;
}
.hero-eyebrow{
  color:var(--gold-light);
  font-family:var(--font-mono);
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:.8rem;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
html[dir="rtl"] .hero-eyebrow{ letter-spacing:0; }
.hero-eyebrow::before{ content:""; width:26px; height:2px; background:var(--gold); }
.hero h1{
  color:var(--white);
  font-size:clamp(2.3rem,5.4vw,4.4rem);
  line-height:1.15;
  max-width:16ch;
  margin-top:18px;
}
.hero h1 em{
  font-style:normal;
  color:var(--gold-light);
}
.hero .lede{
  color:rgba(255,255,255,.86);
  max-width:52ch;
  font-size:1.12rem;
  margin-top:22px;
}
.hero-ctas{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top:38px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:15px 30px;
  border-radius:999px;
  font-weight:700;
  font-size:.94rem;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}
.btn-primary{
  background:var(--gold);
  color:var(--ink);
  box-shadow:0 10px 30px -8px rgba(200,151,78,.65);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 14px 34px -6px rgba(200,151,78,.75); }
.btn-ghost{
  border:1.5px solid rgba(255,255,255,.55);
  color:var(--white);
}
.btn-ghost:hover{ background:rgba(255,255,255,.12); transform:translateY(-2px); }

.hero-scroll{
  position:absolute;
  bottom:28px;
  inset-inline-start:50%;
  transform:translateX(-50%);
  color:rgba(255,255,255,.75);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  font-size:.72rem;
  letter-spacing:.1em;
  z-index:2;
}
html[dir="rtl"] .hero-scroll{ transform:translateX(50%); }
.hero-scroll .line{
  width:1px; height:34px;
  background:linear-gradient(var(--gold-light), transparent);
  animation:scroll-pulse 1.8s ease-in-out infinite;
}
@keyframes scroll-pulse{ 0%,100%{ opacity:.3;} 50%{ opacity:1;} }

/* ---------- Wave divider (signature element) ---------- */
.wave-divider{
  position:relative;
  width:100%;
  height:64px;
  margin-top:-1px;
  line-height:0;
}
.wave-divider svg{ width:100%; height:100%; display:block; }
.wave-divider.flip{ transform:scaleY(-1); }

/* ---------- Stats strip ---------- */
.stats{
  background:var(--ink);
  padding-block:56px 74px;
  margin-top:-2px;
  position:relative;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.stat{
  text-align:center;
  padding-inline:12px;
  border-inline-start:1px solid rgba(255,255,255,.14);
}
html[dir="ltr"] .stat:first-child,
html[dir="rtl"] .stat:first-child{ border-inline-start:none; }
.stat .num{
  font-family:var(--font-mono);
  font-size:clamp(1.9rem,3.4vw,2.7rem);
  font-weight:700;
  color:var(--gold-light);
  display:flex;
  justify-content:center;
  gap:2px;
}
.stat .label{
  margin-top:8px;
  color:rgba(255,255,255,.72);
  font-size:.88rem;
  font-weight:500;
}

/* ---------- Ecosystem ---------- */
.ecosystem{ padding-block:110px 90px; }
.eco-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.eco-card{
  background:var(--white);
  border:1px solid rgba(15,42,54,.08);
  border-radius:var(--radius-md);
  padding:32px 26px;
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  position:relative;
  overflow:hidden;
}
.eco-card::before{
  content:"";
  position:absolute;
  inset-inline-start:0; top:0;
  width:100%; height:3px;
  background:linear-gradient(90deg,var(--teal),var(--gold));
  transform:scaleX(0);
  transform-origin:inline-start;
  transition:transform .35s ease;
}
.eco-card:hover{ transform:translateY(-6px); box-shadow:0 22px 40px -20px rgba(15,42,54,.25); border-color:transparent; }
.eco-card:hover::before{ transform:scaleX(1); }
.eco-icon{
  width:52px; height:52px;
  border-radius:14px;
  background:var(--teal-pale);
  display:flex; align-items:center; justify-content:center;
  color:var(--teal-deep);
  margin-bottom:20px;
}
.eco-icon svg{ width:26px; height:26px; }
.eco-card h3{ font-size:1.08rem; color:var(--ink); }
.eco-card p{ margin-top:10px; color:var(--ink-70); font-size:.92rem; }

/* ---------- Progress / gallery ---------- */
.progress{
  background:var(--teal-pale);
  padding-block:100px;
  position:relative;
}
.progress-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:40px;
  align-items:center;
}
.progress-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:0 30px 60px -25px rgba(15,42,54,.4);
}
.progress-media img{ width:100%; height:100%; object-fit:cover; aspect-ratio:4/3; }
.progress-media .tag{
  position:absolute;
  bottom:18px;
  inset-inline-start:18px;
  background:rgba(15,42,54,.82);
  color:var(--white);
  padding:8px 16px;
  border-radius:999px;
  font-size:.8rem;
  font-weight:600;
  display:flex; align-items:center; gap:8px;
}
.progress-media .tag::before{
  content:"";
  width:7px; height:7px;
  border-radius:50%;
  background:var(--gold-light);
}
.progress-list{ display:flex; flex-direction:column; gap:26px; }
.progress-item{ display:flex; gap:18px; align-items:flex-start; }
.progress-item .mark{
  font-family:var(--font-mono);
  font-weight:700;
  color:var(--white);
  background:var(--teal-deep);
  width:40px; height:40px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
  font-size:.85rem;
}
.progress-item h4{ font-size:1.02rem; color:var(--ink); }
.progress-item p{ margin-top:6px; color:var(--ink-70); font-size:.92rem; }

/* ---------- Medical tourism ---------- */
.tourism{ padding-block:110px 90px; }
.tourism-track{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:0;
  position:relative;
  margin-top:20px;
}
.tourism-track::before{
  content:"";
  position:absolute;
  top:30px; inset-inline:6%;
  height:2px;
  background:repeating-linear-gradient(90deg, var(--teal-light) 0 10px, transparent 10px 18px);
  z-index:0;
}
.tourism-step{
  position:relative;
  z-index:1;
  text-align:center;
  padding-inline:10px;
}
.tourism-step .circle{
  width:60px; height:60px;
  margin-inline:auto;
  border-radius:50%;
  background:var(--white);
  border:2px solid var(--teal-light);
  display:flex; align-items:center; justify-content:center;
  color:var(--teal-deep);
  transition:background .3s ease, color .3s ease, border-color .3s ease, transform .3s ease;
}
.tourism-step svg{ width:24px; height:24px; }
.tourism-step:hover .circle{ background:var(--teal-deep); border-color:var(--teal-deep); color:var(--white); transform:translateY(-4px); }
.tourism-step h4{ margin-top:16px; font-size:.94rem; color:var(--ink); }
.tourism-step p{ margin-top:6px; font-size:.82rem; color:var(--ink-70); }

/* ---------- Master plan ---------- */
.masterplan{ position:relative; background:var(--ink); color:var(--white); padding-block:120px; overflow:hidden; }
.masterplan .container{ position:relative; z-index:2; }
.masterplan .section-head p{ color:rgba(255,255,255,.72); }
.masterplan .section-head h2{ color:var(--white); }
.masterplan .eyebrow{ color:var(--gold-light); }
.masterplan .eyebrow::before{ background:var(--gold-light); }
.plan-media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:0 40px 80px -30px rgba(0,0,0,.6);
  position:relative;
}
.plan-media img{ width:100%; object-fit:cover; max-height:560px; }
.plan-features{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:44px;
}
.plan-feature{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-md);
  padding:22px 20px;
}
.plan-feature .n{ font-family:var(--font-mono); color:var(--gold-light); font-size:.85rem; }
.plan-feature h4{ margin-top:8px; font-size:1rem; color:var(--white); }
.plan-feature p{ margin-top:6px; font-size:.86rem; color:rgba(255,255,255,.7); }

/* ---------- Investment ---------- */
.investment{ padding-block:110px; background:var(--paper); }
.invest-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
  margin-top:20px;
}
.invest-card{
  padding:30px 26px;
  border-radius:var(--radius-md);
  background:linear-gradient(160deg,var(--white),var(--sand));
  border:1px solid rgba(15,42,54,.08);
}
.invest-card .ic{
  width:48px; height:48px;
  border-radius:12px;
  background:var(--ink);
  color:var(--gold-light);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px;
}
.invest-card svg{ width:22px; height:22px; }
.invest-card h4{ font-size:1.02rem; }
.invest-card p{ margin-top:8px; color:var(--ink-70); font-size:.9rem; }
.invest-cta{
  margin-top:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  background:var(--ink);
  border-radius:var(--radius-lg);
  padding:38px 42px;
  color:var(--white);
}
.invest-cta h3{ font-size:1.3rem; color:var(--white); max-width:34ch; }
.invest-cta p{ color:rgba(255,255,255,.7); margin-top:8px; font-size:.92rem; }

/* ---------- Footer ---------- */
.site-footer{ background:#0A2029; color:rgba(255,255,255,.75); padding-block:64px 30px; }
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand{ color:var(--white); }
.footer-brand p{ margin-top:16px; font-size:.88rem; line-height:1.8; max-width:34ch; color:rgba(255,255,255,.6); }
.footer-col h5{ color:var(--white); font-size:.9rem; margin-bottom:16px; font-family:var(--font-display); }
.footer-col ul{ display:flex; flex-direction:column; gap:11px; }
.footer-col a{ font-size:.88rem; transition:color .2s ease; }
.footer-col a:hover{ color:var(--gold-light); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  padding-top:26px;
  font-size:.82rem;
  color:rgba(255,255,255,.5);
}
.footer-lang{ display:flex; gap:6px; }
.footer-lang button{ color:rgba(255,255,255,.5); font-size:.82rem; padding:4px 10px; border-radius:999px; }
.footer-lang button.active{ background:rgba(255,255,255,.12); color:var(--white); }

/* ---------- Mobile nav ---------- */
.mobile-nav{
  position:fixed; inset:0; z-index:200;
  background:var(--ink);
  display:flex; flex-direction:column;
  padding:26px 24px;
  transform:translateY(-100%);
  transition:transform .4s ease;
}
.mobile-nav.open{ transform:translateY(0); }
.mobile-nav-top{ display:flex; justify-content:space-between; align-items:center; }
.mobile-nav-close{ color:var(--white); width:38px; height:38px; }
.mobile-nav ul{ display:flex; flex-direction:column; gap:6px; margin-top:50px; }
.mobile-nav a{ color:var(--white); font-size:1.5rem; font-weight:700; padding-block:14px; border-bottom:1px solid rgba(255,255,255,.1); font-family:var(--font-display); }

/* =================== Responsive =================== */
@media (max-width:980px){
  .stats-grid{ grid-template-columns:repeat(2,1fr); row-gap:36px; }
  .stat:nth-child(3){ border-inline-start:1px solid rgba(255,255,255,.14); }
  .eco-grid{ grid-template-columns:repeat(2,1fr); }
  .progress-grid{ grid-template-columns:1fr; }
  .tourism-track{ grid-template-columns:repeat(3,1fr); row-gap:36px; }
  .tourism-track::before{ display:none; }
  .plan-features{ grid-template-columns:1fr 1fr; }
  .invest-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .nav-links, .header-actions .lang-switch{ display:none; }
  .nav-toggle{ display:flex; }
}
@media (max-width:600px){
  .tourism-track{ grid-template-columns:repeat(2,1fr); }
  .plan-features{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .invest-cta{ flex-direction:column; align-items:flex-start; }
  .hero-content{ padding-block:140px 90px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:4px;
}